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Ring Oscillators: How Do Xor Gates Help with Random Bit Generation?

REDDIT / fosres / May 17, 2025

I was reading Request for Comments 4086 (Randomness Requirements for Security) on using ring oscillators for true random generation. The document says one can increase the rate of random bit generation by applying the sampled bits from ring oscillators to …

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Random Oracles: How Do They Ensure Robustness in Random Generation?

REDDIT / fosres / May 15, 2025

I am trying to understand how the Linux CSPRNG works. In a [git commit](https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git/commit/?id=c57044909484) Jason A Dononfeld explains one of the reasons BLAKE2s was chosen as a cryptographic hash function to serve as a PRNG was that it is a …

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Send files privately. No cloud. No trace.

REDDIT / Accurate-Screen8774 / May 14, 2025

[glitr.io](http://glitr.io/) I’m working towards something for secure/private/simple P2P file transfer. It isnt as “simple” as it could be, im still working on it, but ive got it down to: * Zero-installation as a PWA * Zero-registration by using local-only storage …

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Using encryption instead of hashing for checking passwords - why?

REDDIT / MarbleLemon7000 / May 14, 2025

I stumbled upon an interesting piece of source code at work yesterday. The purpose of the code is to check if the user has provided the correct password compared to the one stored in the database. Pretty standard so far. …

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